Water gun



March 18, 1952 STELZER I 2,589,977

WATER GUN Filed Nov. 18, 1949 INVENTOR.

q Jada i'elzer Patented Mar. 18, 1952 UNITED STATES PATENT OFFICE 3Claims.

This invention relates to liquid-spraying guns, such as are used as toysby children, and has for its object the provision of a toy gun of thischaracter by means of which a stream of water may be sprayed for anappreciable distance by means of air pressure built up in awater-holding chamber or reservoir.

Another object of the invention is to provide, in a toy of thischaracter, pump means which is conveniently operated to build up airpressure in a tank or reservoir to cause ejection of a stream of waterwhen a trigger release is operated.

More particularly, the invention contemplates the provision of a gun ofthis character provided with a water tank to which a manually-operatedair pump is connected, the pump being operated by movements of a portionof the body of the gun, the pump serving to build up air pressure insideof the water tank; the invention also including the employment of asuitable triggeroperated valve which, when opened, will cause a streamof water to be ejected out of an outlet pipe or tube having its outletend located at the forward end or barrel of the gun.

These and other objects are attained by the invention, a more particulardescription of which will hereinafter appear and be set forth in theclaims appended hereto.

In the accompanying drawing, wherein an illustrative embodiment of theinvention is disformed; Fig. 2 is a side view of the gun, with one ofthe halves of-the body of the gun re-. moved to show the operatingparts; Fig. 3 shows the trigger and valve mechanism of the device; Fig.4 is a sectional view taken on the line 44 of Fig. 2; looking in thedirection of the arrows, and Fig. 5 is a sectional view taken on theline 5-5 of Fig. 2, looking in the direction of the arrows.

Referring to the drawing, the body of the gun consists of two mainparts, namely, the forward part I and the rear or stock 2. These partsmay be composed of wood, plastic material or metal and need notnecessarily follow the exact shape shown, but may be readily made insimulation of ahnost any known type of gun or rifle. These parts of thegun body may be split or divided longitudinally, the two halves beingheld together by screws 3 or similar fastening elements. The inner facesof the halves of the gun body parts are suitably recessed to accommodatethe several operating parts of the gun, one of said parts consisting ofan air pump having a barrel 5 within which .a piston 6 is reciprocatedin the known manner of hand pumps. The piston 6 is attached to thepiston rod 1 which has its end 8 connected to the cross-piece 9 of apump-operating yoke I0 which has its opposite end ll anchored in thestock portion 2 of the gun body. This arrangement is such that when thetwo parts I and 2 of the body of the gun are manually moved apart, or tothe position shown in Fig. -1, and then brought toward one another tothe closed position of Fig. 2, reciprocation of the pump piston 6 willoccur and air will be forced from the pump through an outlet pipe H andpast the check valve [2 located therein and into the water tank orreservoir I3.

The water tank or reservoir 13 contains the water H or other liquid tobe ejected or sprayed from the gun. The outlet pipe through which thewater is ejected is shown at l5, the same having a lower portion locatedwithin the tank and having its lower end located near the bottom of thetank. This pipe passes upwardly and through the top wall l6 of the tankand enters into the part I of the body of the gun and then extendshorizontally, as at 25, to the front end of the gun; Located in the pipe15 is a valve l'l which is normally held in closed position by means ofthe spring l8. The valve I7 is provided with a head I9 which is locatedin the path of a valveop: erating pin 20, pivotally connected at 21 tothe upper end of the trigger 22. v;

The trigger 22 is pivoted on a pivot pin 23, mounted in the stockportion 2 of the gun and the trigger is spring-pressed by the spring 24to normally inoperative position, as shown in Fig. 3 so that itsoperating pin 20 is retained away from the head I9 of the valve ll, orat least does not apply sufiicient pressure thereon to cause opening ofthe valve. It will be obvious that when manual pressure is imposed uponthe lower end portion of the trigger, the same will pivot on its pin 23and the operating pin 20 will be forced forward against the head IQ ofthe valve [1, causing the valve to be moved to open position, whereuponthe water l4, under the pressure of air previously pumped into the tankor reservoir l3, will be forced upwardly through the outlet pipe l5 andthrough the horizontal portion 25 thereof to be ejected in a stream outof the forward open end 26 of the part 25 of the outlet pipe. Saidforward open end 26 of the outlet pipe is located at the front end ofhte barrel portion 21 of the un.

In preparing the gun for operation, the tank or ward part I of the gun,the tank may be gripped in one hand, and the handpiece 3:] in the other,to move the parts I and 2 apart and together a number of times to buildup air pressure in the tank l3. When the pump has been operated a fewtimes in the manner described, the ejection of the water will take placeout of the outletend 26 each time the trigger 22 is pressed, until theair pressure in the tank l3 decreases and renewed pumping is required.When a considerable amount of air pressure is built up in the tank 13, astream of water will be ejected for a considerable distance, and sincethe tank may be arranged to contain a substantial quantity of theliquid, the gun may be repeatedly used until the liquid is depleted. Itmay then readily be refilled as previously described.

While I have shown the gun in a certain shape and form, it will beunderstood that this is merely for the purpose of illustration since thegun and its operating parts are capable of numerous changes. Forexample, the tank 13 may be shaped and sized to appear as a handleportion or as a fitting on the forward part of the gun; the body of thegun may be of a shape and style to resemble any well-known make of guns,and various other changes may be made without departing from the spiritof the invention as expressed in the claims appended hereto.

What I claim is:

1. A water gun comprising, a two-part gun body, one of said partsforming a barrel part and the other forming the stock, an air pumpcarried by the barrel part, a liquid-holding tank also carried by saidbarrel part, a conduit establishing communication between the pump andthe tank whereby operation of the pump will force air under pressureinto the tank, pumpoperating means carried by the stock part of the gunbody and caused to operate the pump when one part of the body is movedin a direction away from the other part of the gun body, an outlet pipeleading out of the forward end of the gun body, a valve for controllingthe flow of liquid from said tank to said pipe, and trigger meanscarried by the stock part of the gun body for opening said valve tocause a stream of liquid to be ejected out of the outlet tube.

2. A water gun comprising, a gun body having a forward part and a stockpart. a. pump carried within the forward part, a yoke attached to thestock part and extending into and slidable within the forward part, thepump having a piston, the yoke being coupled thereto whereby separatingmovement of the forward and stock parts of the gun body causes movementof the piston within the pump, an outlet leading from the pump, a watertank to which said outlet is connected, a valve between said outlet andthe tank, a spray tube having one end located in the tank and its otherend leading out of the front end of the forward part of the gun body, avalve in said spray tube, and trigger means carried by the stock partfor opening the last-mentioned valve.

3. A water gun comprising a gun body having a forward part and a stockpart, a pump carried within the forward part, a yoke attached to thestock part and extendin into and slidable within the forward part, thepump having a piston, a rod extending from the piston, the yoke beingcoupled to the rod whereby separating movement of the forward and stockparts of the gun body causes movement of the piston within the pump, anoutlet pipe leading from the pump, a water. tank to which said outletpipe is connected, a valve between said outlet pipe and the tank, aspray tube having one end located within the tank and its other endleading out of the front end of the forward part of the body, a valve insaid spray tube between its forward end and the tank, and aspring-pressed trigger carried by the stock part and manually operableto open the last-mentioned valve.

JACK STELZER.

REFERENCES CITED The following references are 'of record in the file ofthis patent:

UNITED STATES PATENTS Date Frisbie Sept. 11, 1923

